A Directional Antenna in a Matching Liquid for Microwave Radar Imaging
| Autor: | Diego Rodriguez Herrera, Stephen Pistorius, Daniel Flores Tapia, Lotfollah Shafai, Saeed I. Latif, Mario Solis Nepote |
|---|---|
| Přispěvatelé: | University of Manitoba |
| Rok vydání: | 2015 |
| Předmět: |
animal structures
Materials science Article Subject Quantitative Biology::Tissues and Organs Physics::Medical Physics macromolecular substances Antenna tuner law.invention Radiation pattern Optics law polycyclic compounds Dipole antenna Electrical and Electronic Engineering Computer Science::Information Theory Coaxial antenna Directional antenna business.industry Antenna measurement Astrophysics::Instrumentation and Methods for Astrophysics Antenna factor lcsh:HE9713-9715 Horn antenna biological sciences lcsh:Cellular telephone services industry. Wireless telephone industry lcsh:Electrical engineering. Electronics. Nuclear engineering sense organs business lcsh:TK1-9971 |
| Zdroj: | International Journal of Antennas and Propagation, Vol 2015 (2015) |
| ISSN: | 1687-5877 1687-5869 |
| DOI: | 10.1155/2015/751739 |
| Popis: | The detailed design equations and antenna parameters for a directional antenna for breast imaging are presented in this paper. The antenna was designed so that it could be immersed in canola oil to achieve efficient coupling of the electromagnetic energy to the breast tissue. Ridges were used in the horn antenna to increase the operating bandwidth. The antenna has an exponentially tapered section for impedance matching. The double-ridged horn antenna has a wideband performance from 1.5 GHz to 5 GHz (3.75 GHz or 110% of impedance bandwidth), which is suitable for breast microwave radar imaging. The fabricated antenna was tested and compared with simulated results, and similar bandwidths were obtained. Experiments were conducted on breast phantoms using these antennas, to detect a simulated breast lesion. The reconstructed image from the experiments shows distinguishable tumor responses indicating promising results for successful breast cancer detection. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text